Wrench



Patented Feb. 28, |899. C. T. GUILD.

No. 62mm.

WRENCH.

(Application vleA'l Sept. 27, 1898.)

(NuModel.)

Inven o 7^:

Znesses.-

5% Kufe-eem@ UNITED STATES PATENT OFFICE.

CHARLES T. GUILD, OF NORTH ATTLEBOROUGH, MASSACHUSETTS.

WRENCH.

SPECIFICATION vforming part of Letters Patent No. 620,121, datedFebruary 28, 1899. Application led September 27,1898. Serial No.691,970. (No model.)

To all whom it may concern:

Beit known that I, CHARLES T. GUILD, of North Attleborough, in thecounty of Bristol and State of Massachusetts, have invented certain newand useful Improvements in Bicycle-Wrenches', of which the following isa specification.

The object of my invention is to produce a wrench in which the movablejaw can be easily and quickly adjusted without the use of worm-gear andwhich is held securely in its adjusted position.

While I have especially intended my invention to be applied tobicycle-wrenches,lit is applicable to other kinds of wrenches. l

My invention consists in a wrench having the novel features ofconstruction which will now be fully described and which will beparticularly pointed out in the claim at the end of the specification.

In the drawings, Figure l is a side elevation of a wrench embodying myinvention. Fig. 2 is a cross-section on line 2 2 of Fig. l. Fig. 3 is across-section on line 3 3 of Fig. l.

Fig. 4 is a detail of the spring which holds the ratchet-teeth of thetwo members in engagement.

The xed jaw l has a shank 2, the continuation of which forms the stock 3and handle of the wrench. The inner edge of the stock portion is formedwith ratchet-teeth l0,which incline toward the jaw, the shank portionbeing left with a smooth edge for the movable jaw to bear upon. Themovable member is formed with a'jaw 4 and a rearwardly-extendingslide-bar 51, the rear portion of which is formed with ratchet-teeth 1l,which engage with the teeth on the stock 3 of the fixed member. Themovable member is loosely clamped to the xed member by yokes 5 6, whichare riveted to the slide-bar 5l. The yoke 5 has sufficientclearance-space between it and the back edge of the stock to receive acompressing-sprin g 7, which normally holds the teeth of the two membersin engagement and retains the movable jaw in its adjusted position. Bypressing up on the lower end of the yoke 5 the spring 7 is compressed,allowi ing the teeth to become disengaged and per; mitting the movablejaw to be vmoved in either direction for adjustment. The yoke 6 shouldbe just loose enough to allow for the adjustment of the yoke 5 and topermit of the sliding of the movable member, but not so much clearanceis required as for yoke 5. It is obvious that the teeth of the movablemember may ride over the backs of the teeth of the iixed member andpermit the movable jaw to be brought toward the fixed jaw by simplypushing on the end of the slide-bar 51; but there can be no openingmovement without pressing up on the yoke 5. The spring 7 is preferably aflat arched spring, with ears 8, which prevent its slipping out ofplace. Projecting from the side of the stock 3, near its outer end, is astud 9, which serves as a stop to limit the extent of rearward move=ment of the slide=bar.

What I claim as my invention is;

A wrench consisting of a member having a iixed jaw and a shank having onits inner edge ratchet-teeth, in combination with a movable memberhaving ratchet-teeth which engage with the teeth of said fixed member,yokes at tached to the movable member through which the shank of thefixed member passes loosely, an arched spring between one of the yokesand the back of the xed member which normally holds the teeth inengagement, said spring being formed with ears which hold it in placebetween the yoke and the fixed member, substantially as described.

In testimony whereof` I have affixed my signature in presence of twowitnesses.

v CHARLES T. GUILD.

Witnesses:

WILLIAM A. COPELAND, OSCAR F. HILL.

